Effect of the physical state of activators on the combustion of composite rocket propellants. II. Colloidal inhibitors

The effect of inhibitors added as powders and colloidal solutions to propel lants on the combustion of ammonium perchlorate composite rocket propellant s is investigated. Transformation of chemical governors of the composite-pr opellant burning rate into the ultradisperse state (<0.05 mu m) increases t he effectiveness of the inhibitors and decreases their concentration in the propellant provided that particle aggregation is prevented both in synthes is of the governors and during preparation of the propellant. It is shown t hat multilinear expansion is applicable for a quantitative description of t he dependence of the burning rate on the concentration and particle size of the additive.